Loading and unloading apparatus.



H. M. PEIGHTEL. LOADING AND UHLOADING APPARATUS.

APPLICATION FILED JUNE I9, 1914.

Patented J an. 18, 1916.

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' H. M. PEIGHTEL.

1.0mm; AHD UNLOADlHG APPARATUS.

APPLICATION FILED JUNE [9, WM.

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LOADING AND UNLOADING APPARATUS.

APPLICATION HLED IUNEAB. 19H.

Patented Jun. 18, 1916.

4 SHEETS-SHEET 4- INVENTOR IOWA.

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2'0 all whom it may concern:

Be it known that I, l'lowaan M. Psioiiran, tcitizen of the United States. residing at .orafton in the county of Allegheny and ate oi Pennsylvania, have invented new d useful Improvements in Loading and nloading Apparatus, of which the follows: is a speei 'cation. My invention relates generally to appatus by which quantities of material, prefably first measured, are hoisted and disiarged at a iredeteruiined )luce. it is one of the. objects my invention rovide means for deflecting a hoisting tet when near its lower limit so that it av Come to rest close to. and vertically 'fttifii the periphery of a rotatable delivery rain or cylinder, in order that the latter .ay, without eiuhodving any delivery chute 3 its construction, ischai-ge its contents or contents of a compartment thereof into to buclret.

Another object is to provide means wherequantities of two or more separated maals may be delivered by the rum or cyllder into distinct compartments of the aisting bucket.

t still further object is to provide a novel cans for causing the drum or cylinder to .ove into discharging position when the iicket is at or near its lower limit. 1 also rovide a novel means for permitting the rocket to overtravel at its upper limit witha't any danger to the a iparatus or any reting annoyance. Preierably my delivery um rotates always in the same direction, (1 my invention comprises novel means for ving the drum intermittently. My invention comprises a novel constructen whereby the function of the counteright used with a single hoisting bucket am he performed by the employment of an itional hoisting bucket. ther minor lccts will appear hereinafter. Referring to the accompanying drawings, figure 1 is a vertical sectiton of an appatus embodying one of the many forms ihich my invention may take; Fig. 2, a plan Fig. l with parts to the right of the upiend of the frame omitted; Fig. 3, a rizontal section looking down from the e 111 on Fig. 1, arts to the right of the ram being omitted Fig. 4, an elevation at delivery-drum driving-wheel and ad'at devices; Fig. 5, a side elevation of Fig.

Specification 0! Letters Patent.

Application filed June 19, 15314.

HOWARD M. PEIGH'IEL, OF GRAFTON, PENNSYLVANIA, ASSIGNOR T0 DES MOINES BRIDGE AND IRON WORKS, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF LOADING AND UNLOADING AEPARATUS.

Patented Jan. 18, 191%.

Serial No. seems.

4; Fig. 6, a view, largel' diagrammatic, showin my invention app led to two hoisting hue 'ets, one serving as a counter-weight for the other; Fig. 'i', a vertical section showing means for permitting an overtruvel of the hoisting bucket at its upper limit; Fig. 8, an enlarged detail of Fig. 7; Fig. i), a plan showing the arrangement of the upper sheaves on Fig. (3; Fig. 10, an elevation showing the drum operated by a se niratc electric motor; Fi 11, a view of l ig. rotated 90 towarc the observer; Fig. 12, a view showing a modification whereby the drum and bucket may handle a number of separated materials; and Fi 13, a section on the line XIlL-XIII, Fig. 12.

Referring first to Figs. 1 to 5, 4b designates a horizontal delivery drum or cylinder having each end resting on the flanged rollers 2 sup iorted on the quadrilateral frame 3. At one end of the drum 46 I provide two additional flanged rollers 2 which roll in contact with the upper peripheral portion of the drum. The four rollers at each end of the drum are arranged at the corners of the quadrilateral frame 3 with the periphery of the drum in rolling contact with the peripheries of the rollers and the ends of the drum in contact with or close to the roller flanges which prevent an material longitudinal movement of the rum. The rollers 2 are so arranged that a line connecting the centers of any two adjacent rollers is shorter than the diameter of the drum or forms a chord of the drum which insures that the drum cannot move laterally between adjacent rollers.

The drum 46 has two diametrically op 0- site longitudinal openings 4 and I). he partition 6 extends centrall' through the drum from one end thereo to the other, and is joined laterally to the periphery 7 of the drum at one of the edges of each of the openings 4 and a, whereby the drum is divided into two measuring compartments 8 and 0, each embracing substantially one half of the drum. I do not, however, limit my invention to any definite number of longitudinal com artments.

One end 0 the drum is provided extornally with the disk 13 having therein diametrically op osite notches 11. The frame 8 has mountet i thereon the pivoted pawl 12 which engages with one or the other of the notches 11 to prevent the drum from rotating in the wrong direction, which is in the present case frrm left to right, or in a clock-wise direction.

A stud 1O integral with the disk 13 extends out axially beyond the disk. The drum-wheel or sheave-wheel 14 is loosely mounted on the stud immediately beyond the member 13 and is yieldingly pressed toward the latter by the spiral expansion spring 15 which encircles the said stud and is confined thereon by the terminal head or washer 16, secured to the stud by the bolt 17. The opposing faces of the member 13 and the drumvwheel 14 are provided with clutchr teeth 18 which permit the drum-wheel to rotate in one direction independently of the drum, but cause the drum to be rotated with the drum-wheel when the latter is rotated in the opposite direction. The. clutch teeth are inclined transversely of the. stud so as to permit the drum-wheel to ride upon the. inclined surfaces of the teeth on the member 13 when the drum-wheel is rotated, in the present case, from left to right, the spring 15 yielding as the drum-wheel is moved outwardlyon the stud 10 and moving the drumwheel 1-1 toward the member 13 when the clutch-teeth reach the ends of their inclined portions, causing the clutclrteeth on the member 13 and the wheel 14 to become again interlocked.

The periphery of the drum-wheel is provided with the two ropes or cables 19 and 20, the former wound thereon so as to rotate the drum from right to left. and the other so as to rotate the drum-wheel 14 from left to right. The rope 20 passes over the two sheaves 21 and 22 and has the weight 23 ans pended on the end thereof.

The upper rear corners of the bucket 1 support the two rollers 24 which have travel between the pairs of vertical guides 25. The lower portion of the bucket is provided with a pair of rollers 26, one on each side thereof, which have travel in the pairs of vertical guides 27 which stand between the guides 24 and the drum 46. The lower ends of the quides .25 and 27 are curved toward the bucket (to the right in the present case) so as to cause the bucket to travel downwardly and toward the drum, with its upper front edge following more or less closely the curvature of the drum and so as to cause, at least. the front-portion of the open upper end of the bucket to come to rest at its lower limit vertically beneath the rear portion of the drum. When the bucket is at its bottom limit of travel (Fig. 1), the opening 4 or 5 is so positioned by the pawl 12 and by the action of the rope 19 as to allow the material in the compartment 8 or 9 to be discharged by gravitv into the bucket.

The bucket 1 is provided with a bail having the side members 28 and the crossbar 29 connecting the said members together at their upper ends, their lower ends being connected to the bucket or the studs theieon which support the rollers .26. The ends of the cross-bar 29 or the upper ends of the bail are provided with rollers 30 having travel in the uidc 27.

To the mic dle of the bar 2!), I attach the hoist rope or cable 31, which passes up over the skewed sheave 32, then under the idler sheave 33, and then around the hoisting drum 34, driven by any convenient means. From the drum 3-1 the rope 31 passes under the sheave 35 and then over the sheave so. The end of the rope 31 bevond the sheave 36 supports the counter-weight 3T.

38 is a horizontal bar having vertical travel in the guides 39. To this bar I secure the upper end of the ropdlil which runs under the idler 40, over the idler -11. and on the idler 42. The bar 38 is arranged near the u iper limit of travel of the weight 37 and close thereto and has secured thereon a pair of hook-members 4!! which lie in the vath of the weight 37 and are engaged and lifted thereby when the bucket 1 is approximately op osite the drum 46, the arrangements of the parts being such that when the bucket has reached its lower limit of travel (Fig. 1) the weight 37 has, by means of the hook-members 38 and rope 19. caused the drum 46 to be rotated from right to left a half revolution, causing, for example, the opening 4 of the compartment 8 to be brought to the position occupied by the opening 5 on Fig. 1, so that the contents of the said compartment may be discharged into the bucket 1. In the meantime the opening 5 has been brought to the position where the opening 4 is. so that the compartment 9 may be filed from the hopper -14. The material which may stand above the opening 4 or 5 during the rotation of the drum is confined between the stationary plates at each end of the drum and above the same.

It will be noted that the openings 4 and 5 are alternately below the horizontal level of the axis of the drum when the bucket is in its lowest position. the partition 3 then being inclined toward the bucket at such an angle as to cause the contents of the corresponding compartment to be discharged completely and quickly.

Referring now to Figs. (5 to 9, I show, in a somewhat diagranunatic manner. a duplex hoisting arrangement wherein each bucket acts as a counterweight to the other. The hoisting buckets 1 and 1' are attached to the opposite ends of the hoisting rope or cable 31, the bucket 1' performing the functions of the wei ht 37 (Figs. 1 and 2). In Fig. 6, the left-iand bucket 1 is shown at its lower limit and the right-hand bucket 1' is shown at its upper limit and in dumpin position. The hooks 43 have been engage 13 by the crossbar 29 of the bail, which acts -iike the weight 37 (Figs. 1 and 2) to pull tip the rope 19 and cause the drum 46 to be rotated so as to bring the filled compartment therein into position to be discharged into e bucket 1. This operation is the same as nit described for Figs. 1 to 5, except the econd bucket performs the functions of the counter-weight 37 in addition to the hoistin functions. The rope 19 passes over an dilitional sheave -17 and thence under the cave 42 as in Fig. 1. When the bucket 1 lowered and the bucket 1 is raised, the tter when near its upper limit engages the eoks -13 and causes the rope 19' to rotate 1e drum -16 so as to cause it to discharge contents of one of its filled compartments to the bucket 1', which has moved in the eantime at its lower limit ready to receive fresh supply of material from the drum The clutch disk or drum-wheel 14 is eset by the weight 23 as in Figs. 1 to 5, to bar 29' having moved down with the ucket 1' therebv making the rope I!) slack, s that it may be rewound on the wheel l-i. then the bucket 1 is lowered, the weight causes the drum-wheel 14' to rewind hereon the slack rope 19 and the bar 29' grain engages the hooks 43 in orderto move to drum 46 to discharge the other compartaent to discharging position. 48 represents jshock absorber of any improved design to revent too violent a shock to the re es when he books 43 and 43 are engage by the :eight 37 or the bars 29 and 29. f Referring now to Figs. and 11, I show s drum 46 provided with the electric mo- 49 for rotating it from one discharging :osition to another, the motor taking the es of the ropes 19 and and the sheaves d other devices with which they cooperin Figs. 1 to 5. One of the sides 28 of he ball 18 provided with the longitudinal 50, whose lower end engages the roller on the lower end of the switch 52 and rauses it to close the contacts 53 in the motor 'rcuit indicated by the wires 54. The rib it is located so as to cause the motor to rt when the bucket 1 is near its lower it and is of such length as to maintain e switch closed long enough to rotate the um the required number of degrees to ring it to a position to discharge its connts into the bucket. \Vhen the rib 5O sses beneath the roller 51, the spring 55 ens the switch and the motor stops. hen the bucket ascends the rib 50 pushes :ne roller 51 up and laterally in the slot so at the switch remains open. In Figs. 12 and 18. I show the hopper dided by the partition 56 transversely into e two parts 44 and 44. The drum 46 is vided by the partition 57 into compartvnts 46 and 46. The bucket is divided the partition 58 into compartments 1 and l. The said three partitions are arranged in the same transverse line so that material, such as sand in the compartment -14 is all delivered consecutively to the compartments 46" and l", and the material, such as coal, is all delivered from the hopper compartment 4% to the compartments 46* and 1*. The hopper, drum, and bucket may be divided into any desired number of compartments to correspond to the number of materials to be hoisted in separated conditions.

Referring now to Figs. 7 and 8, I have shown the bucket 1' in dumping position, that is, with its top guided laterally by the upper curved end of the guides while its )ottom is still guided vertically above the top, so that material in the bucket will flow down the inclined front side of the bucket and out of its open top. The front of the bucket near the to is provided with one or more books 59 with their concave or hollow side toward the bottom of the bucket. The horizontal bar or roller is normally seated at the bottom of the vertical slots 61 in flanges (52 on the front of the vertical frame pieces 63. side extend up past the roller 0 and suiiieientl v distant therefrom to permit the book 5 to pass above the roller. The book 5%) will pass somewhat beyond the roller until the bucket becomes horizontal. As the rollers 26 pass up the uides 27 and cause the bucket to tilt, the 100k 59 moves back toward the guide and engages the roller 60. If the bucket should overtravel, that is, pass up beyond the position shown, the book will draw the roller up in the slots 1 and thereby prevent the top of the bucket from being drawn back of the vertical plane beyond which the bucket should discharge its contents. The bar or roller prevents the bucket being drawn up so far as to cause the bucket to be suspended with its top downward. The book 59 and the bar ()0 prevent violent shocks to the hoisting apparatus and hold the bucket so that it will not spill its contents down the elevator shaft when an overtravel occurs, and keep the bucket so its rollers 24 will re'enter the guides '25 when the bucket is lowered.

I have shown and described my invention in its preferred forms. but I do not desire to be limited to the particular elements and combinations shown and described, as other elements and combinations may be used without departing from the spirit thereof.

I claim- 1. In a loading, and unloading apparatus, a horizontal rotatable drum, a. hoistingbucket arranged to receive material from the drum, a hoisting mechanism connected to the hoisting-bucket, means including a clutch device operated by the said mechanism for rotating the bucket always in the The guide 25 has its forward same direction, and means for returning the said clutching device to its initial position after each operation of the drum.

2. In a loading and unloading apparatus, a horizontal rotary drum, a. hoisting bucket arranged to receive material from the drum, a counter-weight for the bucket, a cable connecting the bucket and the counter-weight, means for operating the cable, a clutching device for rotating the drum, means actuated by the counter-weight for driving the clutching device in a direction to deliver material from the drum to the bucket, and means for causing the clutching device to resume its initial position after each operation of the drum.

3. In a loading and unloading apparatus, a horizontal rotary drum, having a peripheral opening, a hoisting bucket arranged to receive material from the drum when the latter has been rotated so as to discharge material therefrom through the said opening and into the bucket, means for hoisting the bucket, and means controlled by the hoisting mechanism for automatically rotating the drum always in the same direction from charging position to discharging position.

4. In a loading and unloading apparatus, a horizontal drum rotatable in one direction only, a hoisting mechanism including a hoisting bucket arranged to receive material from the drum, and means controlled by the said mechanism for causing the drum to move from charging position to discharging position.

5. In a loading and unloading apparatus, a pair of hoisting buckets, each serving as a. counter-weight for the other, separate drums rotatable in one direction only and arranged to receive material in one position and to deliver the same to their respective buckets when rotated to another position, a clutching device for driving each drum in the said one direction, means for simultaneously hoisting one bucket and lowering the other, means whereby the drum for supplying one bucket is rotated by the other bucket to discharging position when the latter bucket is at or near its upper limit of travel.

6. In a loading and unloading apparatus, a hoisting cable, a hoisting bucket and a counterweight therefor connected to the cable, a drum rotatable to supply material to the bucket, and a pick-up mechanism engageable by the counter-weight in its upward travel and adapted to rotate the drum.

7. In a loading and unloading apparatus, a hoisting cable, a hoisting bucket and a counterweight therefor connected to the cable, a drum rotatable to supply material to the bucket, a pick-up mechanism engageable by the counter-weight in its upward travel and adapted to rotate the drum, an oscillatory driving device for the drum between the latter and the pick-up mechanism, and means for returning the pick-up mechanism and the driving evice to their initial positions when the counter-weight is lowered.

8. In a loading and unloading apparatus, an open-top hoisting bucket, means for guiding its bottom upwardly and its top laterally to dischargin position, a hook on the forward side of tie bucket, a vertically-movable cross-bar beyond which the hook passes when the bucket moves to the said position and with which it engages when the bucket overtravels.

Signed at Pittsburgh, Pa., this 18th day of June, A. D. 1914-.

HOlVARD h'l. PEIGHTEL. \Vitnesses F. N. Banana, SUZANNE S. Beam.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C." 

